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Coincidence studies of the influence of resonances on simultaneous ionization-excitation of helium by electron impact

Lookup NU author(s): Emeritus Professor Albert Crowe

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Abstract

The electron-photon coincidence/correlation methods have been used to study the influence of the 3lnl′ autoionizing states in helium on simultaneous ionization-excitation to the He+(2p) state. Measured He+(2p) double differential cross sections as a function of outgoing electron energy (at a fixed angle of 5°) show clear evidence of these states. Similarly, observed differences in the anisotropies of electron-photon angular correlations for this excited ion state may be due to contributions from these indirect ionization processes.

Publication metadata

Author(s): Crowe A; Dogan M

Publication type: Article

Publication status: Published

Journal: Journal of Physics B: Atomic, Molecular and Optical Physics

Year: 2002

Volume: 35

Issue: 12

Pages: 2773-2781

ISSN (print): 0953-4075

ISSN (electronic): 1361-6447

Publisher: Institute of Physics Publishing Ltd.

URL: http://dx.doi.org/10.1088/0953-4075/35/12/312

DOI: 10.1088/0953-4075/35/12/312

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